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Finding the Fourth Proportional to 76,775.85, 105,950.43 and 44,938.40

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Solution

The fourth proportional to 76,775.85, 105,950.43 and 44,938.40 is: 62,014.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,775.85 : 105,950.43 = 44,938.40 : x
  2. Step 2: Convert to fraction form
    76,775.85/105,950.43 = 44,938.40/x
  3. Step 3: Cross multiply
    76,775.85x = 105,950.43 × 44,938.40
  4. Step 4: Simplify right side
    76,775.85x = 4,761,242,273.76
  5. Step 5: Solve for x
    x = 4,761,242,273.76/76,775.85
  6. Step 6: Final answer
    x = 62,014.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.